The invention discloses a manufacturing method of a floor drawing part in a two-order character pattern, and relates to the technical field of automobile die manufacturing, and the manufacturing method comprises the following steps: scanning out the floor drawing part in a
stable state, and generating STL (
Standard Template Library) data; a target grid is generated through CATIA repair, and the drawing sequence working molded surface is converted into a
reference grid; calculating the space position deviation between the
reference grid and the target grid in AutoForm, generating a displacement
vector field, and exporting the displacement
vector field as a TXT format general compensation file; driving a floor drawing sequence working molded surface
control point to generate
spatial displacement according to the displacement
vector field by utilizing CATIA to generate a reverse conformal curved surface; and outputting the curved surface when the normal distance deviation meets a preset condition. According to the method, accurate conversion from the rebound state to the parameterized molded surface is achieved through data interaction, an original curved surface topological structure is reserved, the problem that the molded surface is not attached is solved, the
grinding workload of bench workers is reduced, and the mold manufacturing period is shortened.